In a group of Year 9 students, the ratio of boys to girls is 9 : 7. There are 4 more boys than girls in this group. How many students are in this group altogether?

F (x) = 10x^3+29x^2+1x+k and (5x+7) is a factor of f, find the value of k.

On a separate piece of graph paper, graph y = |x - 3|

Mr. Stewart has 26 students in his class. Ten of his students are girls. If Mr. Stewart writes each student's name on a small strip of paper, puts all the paper strips into a hat, and then pulls out one strip without looking, what is the probability

Solve the proportion 20/16=X/80 A=6.25 B=1600 C=100 D=160

Explain your thinking or use division to answer the following is 2 a factor of 72?

What is 100 + 15.8:6

What is the remainder of 9,428 divided by 42?

Find the percent change from 15 to 18.

Describe a real world situation that can be modeled by the equation y=1/20x

The weight of 100 identical samples of a substance is 1 pounds. What is the weight of 10 samples